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What is the Least Common Multiple of 11764 and 11781?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 11764 and 11781 is 8152452.

LCM(11764,11781) = 8152452

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Least Common Multiple of 11764 and 11781 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11764 and 11781, than apply into the LCM equation.

GCF(11764,11781) = 17
LCM(11764,11781) = ( 11764 × 11781) / 17
LCM(11764,11781) = 138591684 / 17
LCM(11764,11781) = 8152452

Least Common Multiple (LCM) of 11764 and 11781 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11764 and 11781. First we will calculate the prime factors of 11764 and 11781.

Prime Factorization of 11764

Prime factors of 11764 are 2, 17, 173. Prime factorization of 11764 in exponential form is:

11764 = 22 × 171 × 1731

Prime Factorization of 11781

Prime factors of 11781 are 3, 7, 11, 17. Prime factorization of 11781 in exponential form is:

11781 = 32 × 71 × 111 × 171

Now multiplying the highest exponent prime factors to calculate the LCM of 11764 and 11781.

LCM(11764,11781) = 22 × 171 × 1731 × 32 × 71 × 111
LCM(11764,11781) = 8152452